Economizer



Feb. 2, 1932. w G QQTTRELL 1,343,383

ECONOMIZER Filed June 10, 1929 Patented Feb. 2, 1932 UNITED STATESWARNER G. COTTRELL, OF COLUMBUS, OHIO ECONOMIZER' Application filed June10,

This invention relates to economizers for internal combustion motors andmore particularly to a device whereby the combustible mixture is soacted upon that it is made perfectly homogeneous and uniform therebypromoting efficiency in the operation of the motor.

Prior art devices in this field have defects which hitherto have notbeen satisfactorily 1o overcome. It has been common practice, forexample, to utilize rotating fans of various types and shafts connectedtherewith either in a relatively movable or a relatively stationarymanner. These devices, however, soon Wear out and require constantlubrication.

They are ineffective at low speeds and often interrupt the mainlubricating functions of the motor.

In contradistinction thereto the present invention provides anon-rotatable device having no moving parts and simply and cheaply made.There are no parts to wear out as there is no movement the sole actionbeing the passage of the combustible mixture past the device. The partscan be easily and cheaply stamped out of metal and one of the membershas integral hangers connected thereto by means of which the device maybe suspended in proper position. These and other advantages will beapparent hereinafter or will be pointed out as the description proceeds.

Reference is made in connection with the following specification to theaccompanying 5 drawings wherein:

Figure 1 is an end view of the device;

Figure 2 is a section on the line 22 of Figure 1;

Figure 3 is a view of all the parts in disassembled relation; and

Figure 4 is an end view similar to Figure .1 of the device in operativeposition.

Similar numerals refer to similar elements throughout the several views.

Referring to the drawings in detail, 1 is a shaft of suitable diameterand length having a head 2 of slightly greater diameter than the shaftitself. On this shaft are a plurality of propeller-shaped baffles 3, allsimilar except one of the end baffles 4 which is different in 1929'.Serial No. 369,584.

that it has'hangers' 5 as will be hereinafter more fully explained.

Each bafiie 3 consists of aplura'lity ofblades joined at their innerpoints and provided with anaperture 6 approximately the size of theshaft 1 so as'to make atight fit therewith. In-the particular exampleshown, each bafiie 3 is provided with four sector-shaped blades twistedata forward angle to the plane of'the central perforated portion. As isshown in Figure 2 a; plurality of these bafiies 3 are assembled on shaft1 suitably spaced by the spacing sleeves 7 which are hollow metalliccylinders shown in the drawings. I The hole in these cylinders is of asize to make a tight fit with shaft 1 when they are placed thereon.

The end 'baflie 4,,as shown, is provided with hangers 5 integraltherewith as above mentione'd. These are stamped out with the baffle" Tiand are then bent into the double rightangled. position shown forming arest composed of the forward surfaces of the outer extremities of thehangers 5, which rests support the device in position onthe end plate 8ofamanifold, for example. 1

Referring again to Figure 2 it will be seen that next to the head 2 ofshaft 1 the bafile 4 is placed and that thereafter the spacing sleeves 7and the bafies 3 alternate. One of the baflles 3 comes atthe end of theshaft 1 and the end of the shaft'is then fiattened'or heath ed to holdthe assembly in fixed rigid position. Although not precisely so shown onthe drawings it is apparent that in assembling the device the bafflesare placedin staggered position, that is, each bafiie blade is offsetwith relation'to the blades on the next succeeding bafiie;

It will thus be seen that when the vacuum in the motor sucks in the fuelmixture through the manifold the mixture is caused to flow past thedevice of the present'invention. The presence of the propellers withtheir stationary and offset blades causes the mixture tobe out andtwisted in many different-directions thus causing a thorough mixingofthe mixture whereby complete combustion is encouragedand efiici'encyofthe motor promoted. The device is preferably stationary at all timesand can be readily removed and replaced. The parts are all fixed firmlyin position and require no lubrication. There is nothing to Wear out asthe effect of the mixture flowing past the device has no appreciableWearing action. The device may, of course, be made of any suitablematerial and is preferably metallic and of a nature that the combustiblemixture will not tarnish or corrode the same. There are no bearings towear out and no parts require replacement.

The device does not fill up the whole space in Which it is placed, as isshown in Figure 4, thus having no tendency to create back pressure, orto retard proper operation of the manifold, as by unduly limiting orobstructing the air supply.

The above is intended to be more illustrative than limitative so that Ido not limit myself thereto except as contained in the subjoined claims.I may, if I desire, change the number of bafiles or the number of bladeson each bafiie or the angle at which the blades are bent. The materialsmay be substituted by any satisfactory material resisting thecombustible mixture and it will be seen that space is left around theoutside of the device for the proper supply of air to be drawn alonginto the motor with the combustible mixture. Other modifications willsuggest themselves and such are within the scope of the presentinvention.

Having thus described my invention and illustrated its use, what I claimas new and desire to secure by Letters Patent of the United States is:

1. A device of the character described for mixing fluids in a manifoldincluding a shaft, a plurality of spaced duplicate imperforatepropeller-shaped baffles thereon, a plurality of spacing sleeves betweensaid battles, and hangers peripherally extending from one end baffle,said baffles being non-rotatable, the blades of successive baffles beingstaggered and spaced from the interior of the manifold, and bentforwardly so as to provide substantially spiral shaped paths for themixed fluids.

2. A device of the character described for mixing fluids in a manifoldincluding a shaft, a plurality of spaced duplicate imperforatepropeller-shaped bafiles thereon, a plurality of spacing sleeves betweensaid bafiies, and hangers peripherally extending from one end baflie,said baffles being non-rotatable, the blades of successive baffles beingstaggered and spaced from the interior of the manifold, and bentforwardly so as to provide substanti ally spiral shaped paths for themixed fluids, said shaft being headed at both ends to hold the assemblyin fixed position.

In testimony whereof I hereunto set my hand this 6 day of June, 1929.

VVARNEB G. COTTRELL.

